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5TH and 6TH gear limiter


Mtpete

Mtpete

0
Joined
Aug 20, 2014
Messages
104
Location
Australia
Ok, now did I read on this forum a few weeks ago that the MT 09 is limited in 5TH and 6TH gear to 9200rpm ??
I must have read it wrong because today I had my baby singing at 10500+ in 5TH, couldn't tell you about 6TH because I kept running out of Tarmac. (On a closed course, of course)
 
A lot of people on this forum have theirs restricted in 5th and 6th. Can't vouch for the none UK bikes but they are in the UK.
Wot was ur speedo reading?
 
I don't think they mean it won't rev past 9200rpm just optimum power is cut.
I just got back from Isle of Man and i had mine revving to 10000+ in 6th over the mountain course showing 143mph.
I am waiting to hear how this is going regarding the flash and how mush more power this is gonna release.
I know that the wind on the mountain at 140+is hard work on compared to my r6.
 
Triple Trouble said:
A lot of people on this forum have theirs restricted in 5th and 6th. Can't vouch for the none UK bikes but they are in the UK.
Wot was ur speedo reading?
Click to expand...

5TH gear 10250rpm=217kph/134.84mph I don't have a speedo healer in yet so speedo error I guess would be about 8-18kph.
 
l34chy said:
I don't think they mean it won't rev past 9200rpm just optimum power is cut.
I just got back from Isle of Man and i had mine revving to 10000+ in 6th over the mountain course showing 143mph.
I am waiting to hear how this is going regarding the flash and how mush more power this is gonna release.
I know that the wind on the mountain at 140+is hard work on compared to my r6.
Click to expand...

It's hard to say for sure at that sort of speed but it feels like its pulling like a tractor still!
 
Mtpete said:
5TH gear 10250rpm=217kph/134.84mph I don't have a speedo healer in yet so speedo error I guess would be about 8-18kph.
Click to expand...

Mine will read 141 @ 9200 and that's ur lot. No speedo healer and when we dyno'd it, it was 128 so that's about 141 giving to 10% margin
 
Triple Trouble said:
Mine will read 141 @ 9200 and that's ur lot. No speedo healer and when we dyno'd it, it was 128 so that's about 141 giving to 10% margin
Click to expand...

To be honest I was trying to focus on the rpm (and the road) it may have said 227 not 217 so that would be 141 mph, it is tricky to take in all the info when going that fast with the wind trying to rip my head off lol, as I'm sure you already know.
 
Mtpete said:
To be honest I was trying to focus on the rpm (and the road) it may have said 227 not 217 so that would be 141 mph, it is tricky to take in all the info when going that fast with the wind trying to rip my head off lol, as I'm sure you already know.
Click to expand...
Yeah i was struggling over the mountain to hold on and there was definitely more on tap
 
Mtpete said:
To be honest I was trying to focus on the rpm (and the road) it may have said 227 not 217 so that would be 141 mph, it is tricky to take in all the info when going that fast with the wind trying to rip my head off lol, as I'm sure you already know.
Click to expand...

tbh I'm more interested in the rpm issue than I am speed. As soon as I get the ECU flashed and have the restriction taken off amongst other things I will post a review
 
Triple Trouble said:
tbh I'm more interested in the rpm issue than I am speed. As soon as I get the ECU flashed and have the restriction taken off amongst other things I will post a review
Click to expand...

It is interesting that the eu model has the restriction and the au may not, I'll look forward to your review. But I can say for certain that in 5TH mine goes well beyond 9200rpm even beyond 10200rpm and still going strong. I will find a longer bit of road and try 6TH gear I would like to know where that stops. I'm also going to get the bike on a dyno one day but a good bike dyno is several hours from my house so some time in the future.
 
10250 in 5th sound about right. Got my ECU reflash by Flashtune and it did remove the speed limiter. I did push the 5th gear to 140 MPH (rev limit) but didn't have enough room at the track to use 6th gear.

Ordered a 15T sprocket yesterday...
 
Ok so I sat down with Simon today and he showed me the data on the laptop for the gearing on a standard bike and one that they have flashed and the exact figures are these:

4th gear will redline.
5th gear is restricted to 10,000rpm.
6th gear is restricted to 8500rpm.
These are at 100% throttle.

When in 5th gear at 100% throttle Yamaha are only letting u have 71% throttle and 6th gear 100% throttle u are only getting 47% throttle.
I hope that clears it up for u.
 
makes you wonder what the top speed would be if the limiter was just like the other gears, the bike must be good for 150 mph with your head down.
 
flydnb said:
makes you wonder what the top speed would be if the limiter was just like the other gears, the bike must be good for 150 mph with your head down.
Click to expand...

Well we recon that if u go by the figures on the laptop it shud be more than that mate. Question is... Wud u wanna go 150+ on it? I doubt it lol
 
Triple Trouble said:
Ok so I sat down with Simon today and he showed me the data on the laptop for the gearing on a standard bike and one that they have flashed and the exact figures are these:

4th gear will redline.
5th gear is restricted to 10,000rpm.
6th gear is restricted to 8500rpm.
These are at 100% throttle.

When in 5th gear at 100% throttle Yamaha are only letting u have 71% throttle and 6th gear 100% throttle u are only getting 47% throttle.
I hope that clears it up for u.
Click to expand...

Going out tomorrow for a blast, will post the results, I need to figure out a way to record the dash numbers and then post it on the forum. I'll try my best to get all the info in the shot, speed, rpm and gear.
 
Mtpete said:
Going out tomorrow for a blast, will post the results, I need to figure out a way to record the dash numbers and then post it on the forum. I'll try my best to get all the info in the shot, speed, rpm and gear.
Click to expand...

nice mate look fwd to it.
 
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